free_mem_gb = 0

app.py

@@ -46,6 +46,7 @@ from diffusers_helper.bucket_tools import find_nearest_bucket
 from diffusers import BitsAndBytesConfig as DiffusersBitsAndBytesConfig, HunyuanVideoTransformer3DModel, HunyuanVideoPipeline
 
 high_vram = False
+free_mem_gb = 0
 
 if torch.cuda.device_count() > 0:
     free_mem_gb = get_cuda_free_memory_gb(gpu)